Who owns BCSSWhat BCSS owns — n/a

Who owns Bain Capital GSS Investment Corp.?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.

Institutional ownership of BCSS from SEC Form 13F filings across 58 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-06-30 reporting period, 58 institutions disclosed 41.2M shares of Bain Capital GSS Investment Corp. worth $423.6M — about 70.6% of shares outstanding; the largest disclosed holder is Fort Baker Capital Management LP. Source: SEC Form 13F filings, parsed by EvidInvest.

13F holders

$423.6M

value, 2026 filers

70.6%

of shares outstanding (41.2M sh)

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of BCSS's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	Fort Baker Capital Management LP	4.2M	$43.6M	3.2%	7.3%	+6.7%
2	Empyrean Capital Partners, LP	4.0M	$41.0M	1.4%	6.8%	0.0%
3	ADAGE CAPITAL PARTNERS GP, L.L.C.	3.0M	$30.8M	0.0%	5.1%	0.0%
4	Sculptor Capital LP	1.7M	$17.7M	0.1%	3%	0.0%
5	Alberta Investment Management CorpNEW	1.6M	$16.4M	0.1%	2.7%	new
6	Mercuria Capital Strategies, LLC	1.5M	$15.9M	9.7%	2.6%	0.0%
7	MOORE CAPITAL MANAGEMENT, LP	1.5M	$15.4M	0.2%	2.6%	0.0%
8	J. Goldman & Co LP	1.5M	$15.2M	0.4%	2.5%	+111.6%
9	Davidson Kempner Capital Management LP	1.4M	$14.4M	0.2%	2.4%	0.0%
10	AQR Arbitrage LLC	1.2M	$12.2M	0.2%	2%	+3.0%
11	HighTower Advisors, LLC	1.1M	$11.1M	0.0%	1.9%	-5.1%
12	Polar Asset Management Partners Inc.	1.1M	$10.8M	0.2%	1.8%	+5.0%
13	LuminArx Capital Management LP	1.0M	$10.3M	4.6%	1.7%	0.0%
14	Ghisallo Capital Management LLC	1.0M	$10.3M	0.2%	1.7%	0.0%
15	ARISTEIA CAPITAL, L.L.C.	1.0M	$10.3M	0.1%	1.7%	0.0%
16	Meteora Capital, LLC	953,237	$9.8M	0.8%	1.6%	-13.2%
17	MILLENNIUM MANAGEMENT LLC	857,600	$8.8M	0.0%	1.5%	-10.4%
18	TWO SIGMA INVESTMENTS, LP	854,756	$8.8M	0.0%	1.5%	0.0%
19	PICTON MAHONEY ASSET MANAGEMENT	700,000	$7.2M	0.1%	1.2%	0.0%
20	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	700,000	$7.2M	0.0%	1.2%	0.0%
21	Linden Advisors LP	600,000	$6.2M	0.0%	1%	0.0%
22	Centiva Capital, LP	562,500	$5.8M	0.1%	1%	+114.3%
23	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	518,210	$5.3M	0.0%	0.9%	-5.1%
24	BOUSSARD & GAVAUDAN GESTION SASNEW	500,000	$5.1M	0.3%	0.9%	new
25	Jain Global LLC	500,000	$5.1M	0.0%	0.9%	+100.0%

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.